:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --title-color: #0078d4;
    --label-color: #333333;
    --input-bg-color: #ffffff;
    --input-border-color: #605e5c;
    --input-text-color: #333333;
    --btn-bg-color: #0078d4;
    --btn-hover-bg-color: #106ebe;
    --btn-text-color: #ffffff;
    --separator-color: #edebe9;
    --card-bg-color: #f3f2f1;
    --card-border-color: #0078d4;
    --card-shadow-color: rgba(0, 0, 0, 0.1);
    --regen-btn-text-color: #333333;
    --regen-btn-border-color: #8a8886;
    --msg-color: #666666;
    --error-color: #a4262c;
}

body.dark-theme {
    --bg-color: #000000;
    --text-color: #cccccc;
    --title-color: #2ba5ff;
    --label-color: #cccccc;
    --input-bg-color: #1b1b1b;
    --input-border-color: #605e5c;
    --input-text-color: #ffffff;
    --btn-bg-color: #2ba5ff;
    --btn-hover-bg-color: #238cdc;
    --btn-text-color: #000000;
    --separator-color: #333333;
    --card-bg-color: #111111;
    --card-border-color: #2ba5ff;
    --card-shadow-color: rgba(0, 0, 0, 0.5);
    --regen-btn-text-color: #cccccc;
    --regen-btn-border-color: #444444;
    --msg-color: #cccccc;
    --error-color: #ff99a4;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    overflow-x: hidden;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: background-color 0.3s, color 0.3s;
}

.title {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--title-color);
    font-weight: 600;
}

.ms-Label {
    color: var(--label-color) !important;
    font-weight: 600;
}

.ms-TextField-field {
    width: 100%;
    height: 80px;
    background-color: var(--input-bg-color) !important;
    border: 1px solid var(--input-border-color) !important;
    border-radius: 2px;
    padding: 8px;
    resize: none;
    color: var(--input-text-color) !important;
    font-family: 'Segoe UI', sans-serif;
}

.ms-Button--primary {
    margin-top: 15px;
    width: 100%;
    height: 40px;
    background-color: var(--btn-bg-color) !important;
    border: none !important;
    color: var(--btn-text-color) !important;
    cursor: pointer;
    font-weight: 600;
    border-radius: 2px;
}

.ms-Button--primary:hover {
    background-color: var(--btn-hover-bg-color) !important;
}

.separator {
    border: 0;
    border-top: 1px solid var(--separator-color);
    margin: 25px 0;
}

.proposal-card {
    background: var(--card-bg-color);
    border-radius: 4px;
    padding: 16px;
    border-top: 4px solid var(--card-border-color);
    box-shadow: 0 4px 10px var(--card-shadow-color);
    animation: fadeIn 0.3s ease-in-out;
}

.proposal-card-label {
    font-size: 10px;
    color: var(--card-border-color);
    font-weight: 700;
}

.proposal-card-text {
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-wrap;
    color: var(--text-color);
    margin: 12px 0 20px 0;
}

.regen-btn {
    margin-top: 10px;
    width: 100%;
    background: transparent;
    color: var(--regen-btn-text-color);
    border: 1px solid var(--regen-btn-border-color);
    padding: 8px;
    cursor: pointer;
    border-radius: 2px;
}

.regen-btn:hover {
    background: var(--card-shadow-color);
}

.status-msg {
    text-align: center;
    color: var(--msg-color);
}

.error-msg {
    color: var(--error-color);
    text-align: center;
}

/* Theme Toggle Switch */
.header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.header-row .title {
    margin-bottom: 0;
}

.theme-switch-wrapper {
    display: flex;
    align-items: center;
}

.theme-switch {
    display: inline-block;
    height: 24px;
    position: relative;
    width: 44px;
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: #ccc;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    background-color: #fff;
    bottom: 4px;
    content: "";
    height: 16px;
    left: 4px;
    position: absolute;
    transition: .4s;
    width: 16px;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--btn-bg-color);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

.theme-icon {
    margin-left: 8px;
    font-size: 14px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}